DnsPermission Class
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DnsPermission Class

 

Controls rights to access Domain Name System (DNS) servers on the network.

Namespace:   System.Net
Assembly:  System (in System.dll)


<SerializableAttribute>
Public NotInheritable Class DnsPermission
	Inherits CodeAccessPermission
	Implements IUnrestrictedPermission

NameDescription
System_CAPS_pubmethodDnsPermission(PermissionState)

Creates a new instance of the DnsPermission class that either allows unrestricted DNS access or disallows DNS access.

NameDescription
System_CAPS_pubmethodAssert()

Declares that the calling code can access the resource protected by a permission demand through the code that calls this method, even if callers higher in the stack have not been granted permission to access the resource. Using Assert can create security issues.(Inherited from CodeAccessPermission.)

System_CAPS_pubmethodCopy()

Creates an identical copy of the current permission instance.(Overrides CodeAccessPermission.Copy().)

System_CAPS_pubmethodDemand()

Forces a SecurityException at run time if all callers higher in the call stack have not been granted the permission specified by the current instance.(Inherited from CodeAccessPermission.)

System_CAPS_pubmethodDeny()

Obsolete.Prevents callers higher in the call stack from using the code that calls this method to access the resource specified by the current instance.(Inherited from CodeAccessPermission.)

System_CAPS_pubmethodEquals(Object)

Determines whether the specified CodeAccessPermission object is equal to the current CodeAccessPermission.(Inherited from CodeAccessPermission.)

System_CAPS_pubmethodFromXml(SecurityElement)

Reconstructs a DnsPermission instance from an XML encoding.(Overrides CodeAccessPermission.FromXml(SecurityElement).)

System_CAPS_pubmethodGetHashCode()

Gets a hash code for the CodeAccessPermission object that is suitable for use in hashing algorithms and data structures such as a hash table.(Inherited from CodeAccessPermission.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethodIntersect(IPermission)

Creates a permission instance that is the intersection of the current permission instance and the specified permission instance.(Overrides CodeAccessPermission.Intersect(IPermission).)

System_CAPS_pubmethodIsSubsetOf(IPermission)

Determines whether the current permission instance is a subset of the specified permission instance.(Overrides CodeAccessPermission.IsSubsetOf(IPermission).)

System_CAPS_pubmethodIsUnrestricted()

Checks the overall permission state of the object.

System_CAPS_pubmethodPermitOnly()

Prevents callers higher in the call stack from using the code that calls this method to access all resources except for the resource specified by the current instance.(Inherited from CodeAccessPermission.)

System_CAPS_pubmethodToString()

Creates and returns a string representation of the current permission object.(Inherited from CodeAccessPermission.)

System_CAPS_pubmethodToXml()

Creates an XML encoding of a DnsPermission instance and its current state.(Overrides CodeAccessPermission.ToXml().)

System_CAPS_pubmethodUnion(IPermission)

Creates a permission instance that is the union of the current permission instance and the specified permission instance.(Overrides CodeAccessPermission.Union(IPermission).)

The default permissions allow all local and Intranet zone applications to access DNS services, and no DNS permission for Internet zone applications.

.NET Framework
Available since 1.1

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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